Adding the NVME causes boot loop?

[zaius]

I've disconnected the drive now (but left the adapter in place, connected, and the PBP works fine.

I've tried the NVME in a different laptop (but its really really tedious to get it in and out) and Ubuntu had no issue with the drive.

The drive is a Rocket NVMe PCIe M.2 2280 SSD.

Any suggestions ?

I would try re-formatting it in the laptop, where it works. Using the stock Debian, FAT32 USB drives work. As far as I know, both EXT4 and FAT32 should work for storage.

Also, I took a look at the webpage for that drive. It's possible that it's drawing too much power to work properly in the PBP.